diff --git a/src/image.rs b/src/image.rs
index a41edec..1293a40 100644
--- a/src/image.rs
+++ b/src/image.rs
@@ -58,6 +58,7 @@ pub struct Header {
     pub version: u32,
 }
 
+#[derive(PartialEq, Eq, Debug, Clone)]
 pub struct Block {
     pub offset: u64,
     pub range: Range<u64>,
diff --git a/src/iomem.rs b/src/iomem.rs
index 06b93a9..37b27f0 100644
--- a/src/iomem.rs
+++ b/src/iomem.rs
@@ -48,7 +48,7 @@ fn parse_file(path: &Path) -> Result<Vec<Range<u64>>, Error> {
         ranges.push(start..end);
     }
 
-    Ok(ranges)
+    Ok(merge_ranges(ranges))
 }
 
 #[must_use]
@@ -122,43 +122,71 @@ mod tests {
 
     #[test]
     fn test_parse_iomem() -> Result<(), Error> {
-        let ranges = parse_file(Path::new("test/iomem.txt"))?;
-        let expected = [
-            4096..654_335,
-            1_048_576..1_073_676_287,
-            4_294_967_296..6_979_321_855,
-        ];
-        assert_eq!(ranges, expected);
-
-        let ranges = parse_file(Path::new("test/iomem-2.txt"))?;
-        let expected = [
-            4096..655_359,
-            1_048_576..1_055_838_207,
-            1_056_026_624..1_073_328_127,
-            1_073_737_728..1_073_741_823,
-            4_294_967_296..6_979_321_855,
-        ];
-        assert_eq!(ranges, expected);
-
-        let ranges = parse_file(Path::new("test/iomem-3.txt"))?;
-        let expected = [
-            65_536..649_215,
-            1_048_576..2_146_303_999,
-            2_146_435_072..2_147_483_647,
-        ];
-        assert_eq!(ranges, expected);
-
-        let ranges = parse_file(Path::new("test/iomem-4.txt"))?;
-        let expected = [
-            4_096..655_359,
-            1_048_576..1_423_523_839,
-            1_423_585_280..1_511_186_431,
-            1_780_150_272..1_818_623_999,
-            1_818_828_800..1_843_613_695,
-            2_071_535_616..2_071_986_175,
-            4_294_967_296..414_464_344_063,
-        ];
-        assert_eq!(ranges, expected);
+        for (filename, expected) in [
+            (
+                Path::new("test/iomem.txt"),
+                vec![
+                    4096..654_335,
+                    1_048_576..1_073_676_287,
+                    4_294_967_296..6_979_321_855,
+                ],
+            ),
+            (
+                Path::new("test/iomem-2.txt"),
+                vec![
+                    4096..655_359,
+                    1_048_576..1_055_838_207,
+                    1_056_026_624..1_073_328_127,
+                    1_073_737_728..1_073_741_823,
+                    4_294_967_296..6_979_321_855,
+                ],
+            ),
+            (
+                Path::new("test/iomem-3.txt"),
+                vec![
+                    65_536..649_215,
+                    1_048_576..2_146_303_999,
+                    2_146_435_072..2_147_483_647,
+                ],
+            ),
+            (
+                Path::new("test/iomem-4.txt"),
+                vec![
+                    4_096..655_359,
+                    1_048_576..1_423_523_839,
+                    1_423_585_280..1_511_186_431,
+                    1_780_150_272..1_818_623_999,
+                    1_818_828_800..1_843_613_695,
+                    2_071_535_616..2_071_986_175,
+                    4_294_967_296..414_464_344_063,
+                ],
+            ),
+            (
+                Path::new("test/iomem-5.txt"),
+                vec![
+                    4_096..655_359,
+                    1_048_576..175_058_967,
+                    175_058_968..175_067_223,
+                    175_067_224..175_071_255,
+                    175_071_256..175_077_463,
+                    175_077_464..175_079_447,
+                    175_079_448..175_087_703,
+                    175_087_704..175_091_735,
+                    175_091_736..175_124_567,
+                    175_124_568..241_524_735,
+                    241_643_520..251_310_079,
+                    251_326_464..251_383_807,
+                    251_424_768..264_671_231,
+                    264_675_328..267_280_383,
+                    267_739_136..267_866_111,
+                    267_870_208..3_221_225_471,
+                    4_294_967296..13_958_643_711,
+                ],
+            ),
+        ] {
+            let ranges = parse_file(filename)?;
+            assert_eq!(ranges, expected);
+        }
 
         Ok(())
     }
diff --git a/src/snapshot.rs b/src/snapshot.rs
index f7a6881..07fde0b 100644
--- a/src/snapshot.rs
+++ b/src/snapshot.rs
@@ -20,9 +20,6 @@ pub enum Error {
     #[error("locked down /proc/kcore")]
     LockedDownKcore,
 
-    #[error("unable to find memory range: {0:?}")]
-    UnableToFindMemoryRange(Range<u64>),
-
     #[error("unable to create memory snapshot")]
     UnableToCreateMemorySnapshot(#[from] crate::image::Error),
 
@@ -194,6 +191,50 @@ impl<'a, 'b> Snapshot<'a, 'b> {
         Ok(())
     }
 
+    // given a set of ranges from iomem and a set of Blocks derived from the
+    // psuedo-elf phys section headers, derive a set of ranges that can be used
+    // to create a snapshot.
+    fn find_kcore_blocks(ranges: &[Range<u64>], headers: &[Block]) -> Vec<Block> {
+        let mut result = vec![];
+
+        'outer: for range in ranges {
+            let mut range = range.clone();
+
+            'inner: for header in headers {
+                match (
+                    header.range.contains(&range.start),
+                    // TODO: ranges is currently inclusive, but not a
+                    // RangeInclusive.  this should be adjusted.
+                    header.range.contains(&(range.end - 1)),
+                ) {
+                    (true, true) => {
+                        let block = Block {
+                            offset: header.offset + range.start - header.range.start,
+                            range: range.clone(),
+                        };
+
+                        result.push(block);
+                        continue 'outer;
+                    }
+                    (true, false) => {
+                        let block = Block {
+                            offset: header.offset + range.start - header.range.start,
+                            range: range.start..header.range.end,
+                        };
+
+                        result.push(block);
+                        range.start = header.range.end;
+                    }
+                    _ => {
+                        continue 'inner;
+                    }
+                };
+            }
+        }
+
+        result
+    }
+
     fn kcore(&self) -> Result<()> {
         if !is_kcore_ok() {
             return Err(Error::LockedDownKcore);
@@ -206,21 +247,19 @@ impl<'a, 'b> Snapshot<'a, 'b> {
         file.phdrs.sort_by(|a, b| a.vaddr.cmp(&b.vaddr));
         let start = file.phdrs[0].vaddr - self.memory_ranges[0].start;
 
-        let mut blocks = vec![];
-        'outer: for range in &self.memory_ranges {
-            for phdr in &file.phdrs {
-                if range.start == phdr.vaddr - start {
-                    let size = u64::min(phdr.memsz, range.end - range.start);
-                    blocks.push(Block {
-                        offset: phdr.offset,
-                        range: range.start..range.start + size,
-                    });
-                    continue 'outer;
-                }
-            }
-            return Err(Error::UnableToFindMemoryRange(range.clone()));
+        let mut physical_ranges = vec![];
+
+        for phdr in file.phdrs {
+            let entry_start = phdr.vaddr - start;
+            let entry_end = entry_start + phdr.memsz;
+
+            physical_ranges.push(Block {
+                range: entry_start..entry_end,
+                offset: phdr.offset,
+            });
         }
 
+        let blocks = Self::find_kcore_blocks(&self.memory_ranges, &physical_ranges);
         image.write_blocks(&blocks)?;
         Ok(())
     }
@@ -247,3 +286,55 @@ impl<'a, 'b> Snapshot<'a, 'b> {
         Ok(())
     }
 }
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn translate_ranges() {
+        let ranges = [10..20, 30..35, 45..55];
+
+        let core_ranges = [
+            Block {
+                range: 10..20,
+                offset: 0,
+            },
+            Block {
+                range: 25..35,
+                offset: 10,
+            },
+            Block {
+                range: 40..50,
+                offset: 20,
+            },
+            Block {
+                range: 50..55,
+                offset: 35,
+            },
+        ];
+
+        let expected = vec![
+            Block {
+                offset: 0,
+                range: 10..20,
+            },
+            Block {
+                offset: 10 + 5,
+                range: 30..35,
+            },
+            Block {
+                offset: 25,
+                range: 45..50,
+            },
+            Block {
+                offset: 35,
+                range: 50..55,
+            },
+        ];
+
+        let result = Snapshot::find_kcore_blocks(&ranges, &core_ranges);
+
+        assert_eq!(result, expected);
+    }
+}
diff --git a/test/iomem-5.txt b/test/iomem-5.txt
new file mode 100644
index 0000000..c355147
--- /dev/null
+++ b/test/iomem-5.txt
@@ -0,0 +1,139 @@
+00000000-00000fff : ACPI Non-volatile Storage
+00001000-0009ffff : System RAM
+000a0000-000bffff : PCI Bus 0000:00
+000c0000-000fffff : Reserved
+  000c0000-000c7fff : Video ROM
+    00000000-00000000 : PCI Bus 0000:00
+  000c4000-000cbfff : PCI Bus 0000:00
+  00000000-00000000 : PCI Bus 0000:00
+  000d4000-000dbfff : PCI Bus 0000:00
+  00000000-00000000 : PCI Bus 0000:00
+  00000000-00000000 : PCI Bus 0000:00
+  000e4000-000effff : PCI Bus 0000:00
+  000f0000-000fffff : System ROM
+00100000-0a6f3017 : System RAM
+0a6f3018-0a6f5057 : System RAM
+0a6f5058-0a6f6017 : System RAM
+0a6f6018-0a6f7857 : System RAM
+0a6f7858-0a6f8017 : System RAM
+0a6f8018-0a6fa057 : System RAM
+0a6fa058-0a6fb017 : System RAM
+0a6fb018-0a703057 : System RAM
+0a703058-0e655fff : System RAM
+0e656000-0e672fff : ACPI Tables
+0e673000-0efaafff : System RAM
+0efab000-0efaefff : Reserved
+0efaf000-0efbcfff : System RAM
+0efbd000-0efc1fff : Reserved
+0efc2000-0efc6fff : ACPI Non-volatile Storage
+0efc7000-0fc68fff : System RAM
+0fc69000-0fc69fff : Reserved
+0fc6a000-0fee5fff : System RAM
+0fee6000-0ff55fff : Reserved
+0ff56000-0ff74fff : System RAM
+0ff75000-0ff75fff : ACPI Non-volatile Storage
+0ff76000-bfffffff : System RAM
+  1a000000-1b00251f : Kernel code
+  1b200000-1bc8afff : Kernel rodata
+  1be00000-1c2477ff : Kernel data
+  1c543000-1c9fffff : Kernel bss
+c0000000-efffffff : PCI Bus 0000:00
+  c0000000-c0003fff : 0000:00:10.0
+  e0000000-e7ffffff : PCI MMCONFIG 0000 [bus 00-7f]
+    e0000000-e7ffffff : pnp 00:06
+f0000000-fa4fffff : PCI Bus 0000:00
+  f0000000-f7ffffff : 0000:00:0f.0
+    f0000000-f7ffffff : vmwgfx probe
+  f8000000-f84fffff : PCI Bus 0000:02
+  f8500000-f85fffff : PCI Bus 0000:22
+  f8600000-f86fffff : PCI Bus 0000:21
+  f8700000-f87fffff : PCI Bus 0000:20
+  f8800000-f88fffff : PCI Bus 0000:1f
+  f8900000-f89fffff : PCI Bus 0000:1e
+  f8a00000-f8afffff : PCI Bus 0000:1d
+  f8b00000-f8bfffff : PCI Bus 0000:1c
+  f8c00000-f8cfffff : PCI Bus 0000:1b
+  f8d00000-f8dfffff : PCI Bus 0000:1a
+  f8e00000-f8efffff : PCI Bus 0000:19
+  f8f00000-f8ffffff : PCI Bus 0000:18
+  f9000000-f90fffff : PCI Bus 0000:17
+  f9100000-f91fffff : PCI Bus 0000:16
+  f9200000-f92fffff : PCI Bus 0000:15
+  f9300000-f93fffff : PCI Bus 0000:14
+  f9400000-f94fffff : PCI Bus 0000:13
+  f9500000-f95fffff : PCI Bus 0000:12
+  f9600000-f96fffff : PCI Bus 0000:11
+  f9700000-f97fffff : PCI Bus 0000:10
+  f9800000-f98fffff : PCI Bus 0000:0f
+  f9900000-f99fffff : PCI Bus 0000:0e
+  f9a00000-f9afffff : PCI Bus 0000:0d
+  f9b00000-f9bfffff : PCI Bus 0000:0c
+  f9c00000-f9cfffff : PCI Bus 0000:0b
+  f9d00000-f9dfffff : PCI Bus 0000:0a
+  f9e00000-f9efffff : PCI Bus 0000:09
+  f9f00000-f9ffffff : PCI Bus 0000:08
+  fa000000-fa0fffff : PCI Bus 0000:07
+  fa100000-fa1fffff : PCI Bus 0000:06
+  fa200000-fa2fffff : PCI Bus 0000:05
+  fa300000-fa3fffff : PCI Bus 0000:04
+  fa400000-fa4fffff : PCI Bus 0000:03
+fa500000-febfffff : PCI Bus 0000:00
+  fb800000-fbffffff : 0000:00:0f.0
+    fb800000-fbffffff : vmwgfx probe
+  fc000000-fc9fffff : PCI Bus 0000:02
+    fc000000-fc01ffff : 0000:02:01.0
+      fc000000-fc01ffff : e1000
+    fc020000-fc02ffff : 0000:02:01.0
+      fc020000-fc02ffff : e1000
+    fc030000-fc03ffff : 0000:02:01.0
+    fc040000-fc04ffff : 0000:02:05.0
+    fc050000-fc050fff : 0000:02:05.0
+      fc050000-fc050fff : ahci
+    fc051000-fc051fff : 0000:02:03.0
+      fc051000-fc051fff : ehci_hcd
+  fcb00000-fcbfffff : PCI Bus 0000:22
+  fcc00000-fccfffff : PCI Bus 0000:21
+  fcd00000-fcdfffff : PCI Bus 0000:20
+  fce00000-fcefffff : PCI Bus 0000:1f
+  fcf00000-fcffffff : PCI Bus 0000:1e
+  fd000000-fd0fffff : PCI Bus 0000:1d
+  fd100000-fd1fffff : PCI Bus 0000:1c
+  fd200000-fd2fffff : PCI Bus 0000:1b
+  fd300000-fd3fffff : PCI Bus 0000:1a
+  fd400000-fd4fffff : PCI Bus 0000:19
+  fd500000-fd5fffff : PCI Bus 0000:18
+  fd600000-fd6fffff : PCI Bus 0000:17
+  fd700000-fd7fffff : PCI Bus 0000:16
+  fd800000-fd8fffff : PCI Bus 0000:15
+  fd900000-fd9fffff : PCI Bus 0000:14
+  fda00000-fdafffff : PCI Bus 0000:13
+  fdb00000-fdbfffff : PCI Bus 0000:12
+  fdc00000-fdcfffff : PCI Bus 0000:11
+  fdd00000-fddfffff : PCI Bus 0000:10
+  fde00000-fdefffff : PCI Bus 0000:0f
+  fdf00000-fdffffff : PCI Bus 0000:0e
+  fe000000-fe0fffff : PCI Bus 0000:0d
+  fe100000-fe1fffff : PCI Bus 0000:0c
+  fe200000-fe2fffff : PCI Bus 0000:0b
+  fe300000-fe3fffff : PCI Bus 0000:0a
+  fe400000-fe4fffff : PCI Bus 0000:09
+  fe500000-fe5fffff : PCI Bus 0000:08
+  fe600000-fe6fffff : PCI Bus 0000:07
+  fe700000-fe7fffff : PCI Bus 0000:06
+  fe800000-fe8fffff : PCI Bus 0000:05
+  fe900000-fe9fffff : PCI Bus 0000:04
+  fea00000-feafffff : PCI Bus 0000:03
+fec00000-fec003ff : IOAPIC 0
+fec10000-fed3ffff : PCI Bus 0000:00
+  fed00000-fed003ff : HPET 0
+    fed00000-fed003ff : pnp 00:04
+fed45000-fedfffff : PCI Bus 0000:00
+fee00000-fee00fff : Local APIC
+fef00000-ffdfffff : PCI Bus 0000:00
+  ffba0000-ffbbffff : 0000:00:10.0
+    ffba0000-ffbbffff : mpt
+  ffbc0000-ffbdffff : 0000:00:10.0
+    ffbc0000-ffbdffff : mpt
+  ffbe0000-ffbe1fff : 0000:00:07.7
+  ffc00000-ffc29fff : Reserved
+100000000-33fffffff : System RAM