diff --git a/read_in.py b/read_in.py
index f7c79a7..7a91d82 100644
--- a/read_in.py
+++ b/read_in.py
@@ -36,10 +36,11 @@ def read_single_elevation(dat: str) -> Result[int, str]:
 	>>> read_single_elevation("10.0m")
 	Err('10.0m')
 	"""
-	return map_res(
-		meters_to_millimeters, # fuck floating points
-		try_(replace(dat), float, dat)
-	)
+	try:
+		# fuck floating points
+		return Ok(meters_to_millimeters(float(dat)))
+	except ValueError:
+		return Err(dat)
 
 def read_elevation_line(line: str) -> Result[Sequence[int], Tuple[int, str]]:
 	"""
@@ -186,7 +187,7 @@ def load_gb_pixels_as_map(pixels: Iterable[Tuple[int, int]]) -> Result[Sequence[
     """
     return sequence([
         note(
-            UnrecognizedColor(pix_no % 395, pix_no // 395),
+			lambda: UnrecognizedColor(pix_no % 395, pix_no // 395),
             gb_to_terrain_type(gb)
         )
         for (pix_no, gb) in enumerate(pixels)